knuckle cracking

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knuckle cracking2016-11-12T14:13:45+00:00

knuckle cracking 

The placing of hyperextensive or hyperflexive pressure on joints–especially of the hands, evoking a cracking sound

Conventional wisdom has long held that knuckle cracking either causes arthritis of the hand or exacerbates it. Not true. Dr Donald L Unger, MD, received a highly coveted 2009 Ig Nobel prize for his single author, single patient (himself) contribution to knuckle-ology by cracking the joints of his left hand–but not his right–for 50-plus years. 


No arthritis in either.

Reference Unger DL. Arthritis Rheum. 1998 May;41(5):949-50, later updated 


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